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//02_distance_speaker | |
//近づいたエリアによって違う音がなる | |
//SchooMyとかいてあるところまですすもう | |
#define echoPin 19 | |
#define trigPin 18 | |
#define SPEAKER 10 | |
#define do 262 | |
#define re 294 | |
#define mi 330 | |
#define fa 349 | |
#define so 392 | |
#define ra 440 | |
#define shi 494 | |
#define do2 523 | |
double Duration = 0; | |
double Distance = 0; | |
void setup() { | |
Serial.begin(9600); | |
pinMode(echoPin, INPUT); | |
pinMode(trigPin, OUTPUT); | |
pinMode(SPEAKER, OUTPUT); | |
} | |
void loop() { | |
digitalWrite(trigPin, LOW); | |
delayMicroseconds(2); | |
digitalWrite(trigPin, HIGH); //超音波を出力 | |
delayMicroseconds(10); | |
digitalWrite(trigPin, LOW); | |
Duration = pulseIn(echoPin, HIGH); //センサからの入力 | |
if (Duration > 0) { | |
Duration = Duration / 2; //往復距離を半分 | |
Distance = Duration * 340 * 100 / 1000000; //音速を340m/sに設定 | |
Serial.print("Distance:"); | |
Serial.print(Distance); | |
Serial.println("cm"); | |
delay(500); | |
} | |
//SchooMy | |
//プログラムはここからかえます | |
if (Distance < 10) { //このエリアになったら | |
tone(SPEAKER, do); //鳴る | |
delay(1000); //待つ | |
Serial.println("do"); //表示する | |
delay(20); //待つ | |
} else if (Distance < 20) { //このエリアになったら | |
tone(SPEAKER, re); //鳴る | |
delay(1000); //待つ | |
Serial.println("re"); //表示する | |
delay(20); //待つ | |
} else if (Distance < 30) { //このエリアになったら | |
tone(SPEAKER, mi); //鳴る | |
delay(1000); //待つ | |
Serial.println("mi"); //表示する | |
delay(20); //待つ | |
} else { //それ以外は | |
noTone(SPEAKER); //鳴らない | |
delay(20); //待つ | |
} | |
noTone(SPEAKER); | |
delay(20); | |
} |
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